PIC16LC924-08/CL データシートの表示（PDF） - Microchip Technology

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PIC16LC924-08/CL

8-Bit CMOS Microcontroller with LCD Driver

Microchip Technology 

PIC16C9XX

MOVF

Move f

Syntax:

[ label ] MOVF f,d

Operands:

0 ≤ f ≤ 127

d ∈ [0,1]

Operation:

(f) → (destination)

Status Affected: Z

Encoding:

00

1000 dfff ffff

Description:

The contents of register f is moved to a

destination dependant upon the status

of d. If d = 0, destination is W register. If

d = 1, the destination is file register f

itself. d = 1 is useful to test a file regis-

ter since status flag Z is affected.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1 Q2 Q3

Q4

Decode

Read

register

'f'

Process Write to

data destination

Example

MOVF FSR, 0

After Instruction

W = value in FSR register

Z =1

MOVWF

Move W to f

Syntax:

[ label ] MOVWF f

Operands:

0 ≤ f ≤ 127

Operation:

(W) → (f)

Status Affected: None

Encoding:

00 0000 1fff ffff

Description:

Move data from W register to register

'f'.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Q2 Q3

Q4

Decode

Read

register

'f'

Process Write

data register 'f'

Example

MOVWF OPTION_REG

Before Instruction

OPTION =

W

=

After Instruction

OPTION =

W

=

0xFF

0x4F

0x4F

0x4F

MOVLW

Move Literal to W

Syntax:

[ label ] MOVLW k

Operands:

0 ≤ k ≤ 255

Operation:

k → (W)

Status Affected: None

Encoding:

11

00xx kkkk kkkk

Description:

The eight bit literal 'k' is loaded into W

register. The don’t cares will assemble

as 0’s.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Q2 Q3

Q4

Decode Read Process Write to

literal 'k' data

W

Example

MOVLW 0x5A

After Instruction

W = 0x5A

DS30444E - page 130

© 1997 Microchip Technology Inc.

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